Add hook method in Collection View to retrieve the models which will be provided to the template (tpl).
Change Collection View's `getModelElement()` method to `getParentModelElement()`.
Have the Collection View remove its listeners from the Collection upon destruction.
Fix to allow for overridden `collectModels()` method to return a subset of models in Collection View.
Automatically mask the Collection View while the collection is loading.
Change Collection view's `getParentModelElement()` method to `getModelParentElement`
Change title of html pages for tests and playground, to make their tabs more easily identifiable.
Fix images directory for compass.